发明名称 LAYER STRUCTURE AND FILMS FOR ID DOCUMENTS HAVING IMPROVED PROPERTIES FOR LASER ENGRAVING
摘要 The present invention relates to a layer structure having improved properties for laser engraving, to particular embodiments of said layer structures in the form of co-extrusion films, and to security documents, preferably identification documents comprising said layer structures.
申请公布号 CA2751201(C) 申请公布日期 2016.01.12
申请号 CA20102751201 申请日期 2010.01.23
申请人 BAYER MATERIALSCIENCE AG 发明人 PUDLEINER, HEINZ;YESILDAG, MEHMET-CENGIZ;TZIOVARAS, GEORGIOS;NICKEL, JOERG;MEYER, KLAUS
分类号 B32B27/18;B32B27/20;B32B27/36 主分类号 B32B27/18
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